CN110471245A - Light-source system, projection device and lighting apparatus - Google Patents
Light-source system, projection device and lighting apparatus Download PDFInfo
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- CN110471245A CN110471245A CN201810444994.4A CN201810444994A CN110471245A CN 110471245 A CN110471245 A CN 110471245A CN 201810444994 A CN201810444994 A CN 201810444994A CN 110471245 A CN110471245 A CN 110471245A
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- light
- optical path
- source system
- color laser
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2066—Reflectors in illumination beam
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2073—Polarisers in the lamp house
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B33/00—Colour photography, other than mere exposure or projection of a colour film
- G03B33/08—Sequential recording or projection
Abstract
It includes: excitation light source that the present invention, which provides a kind of light-source system, projection device and lighting apparatus, the light-source system, for issuing the first color laser；Light source is supplemented, for issuing laser as supplement light；Optical path selection element includes: transmissive portions, for transmiting the first color laser；Optical path selector, for the first color laser to be reflexed to the first optical path or the second optical path with timing；And driving portion, for driving the transmissive portions and the optical path selector to be alternately located in the optical path of the first color laser；First wave length conversion equipment, for generating the second color fluorescence under the excitation of the first color laser along first optic path；And second wave length conversion equipment, for generating three fluorescence under the excitation of the first color laser along second optic path；The second color fluorescence, the three fluorescence, the supplement light, with the optical path selection element transmission the first color laser light combination after be emitted.
Description
Technical field
The present invention relates to projection art more particularly to a kind of light-source systems, projection device and lighting apparatus.
Background technique
This part intends to provides background or context for a specific embodiment of the invention stated in claims.This
The description at place recognizes it is the prior art not because not being included in this section.
Laser fluorescence light source technology is the technology that stimulated light is generated using the first color LASER Excited Fluorescence powder, usually using blue
For laser as the first color laser, fluorescent powder can be yellow fluorescent powder, green light fluorescent powder or red light fluorescent powder etc., and blue laser
The launching efficiency of advantage of lower cost, electric light high conversion efficiency, fluorescent powder is high；But fluorescence spectrum is wider, and excitation purity is low, therefore not
The requirement of wide colour gamut can be directly satisfied with, in order to improve colour purity, filtered usually using optical filter to it, but this side
Formula will cause biggish light loss.
On this basis, preferable excitation purity can be obtained using the mixing light source of fluorescence and laser and utilize the two
Light mixing eliminating coherence maintains an acceptable cost.Bring some problems to optical design at the same time, due to fluorescence spectrum with
There is the wave band of overlapping in laser spectrum, light efficiency loss will be caused larger the two light combination.
Summary of the invention
Larger technical problem is lost to solve laser fluorescence luminous efficiency of source in the prior art, and the present invention provides one kind can be with
The laser fluorescence light-source system of light efficiency loss is effectively reduced, this, which shines, also provides a kind of projection device and lighting apparatus.
A kind of light-source system, comprising:
Excitation light source, for issuing the first color laser；
Light source is supplemented, for issuing the supplement light different from the first color laser color, the supplement light is laser；
Optical path selection element, comprising:
Transmissive portions, for transmiting the first color laser；
Optical path selector, for the first color laser to be reflexed to the first optical path or the second optical path with timing；And
Driving portion, for driving the transmissive portions and the optical path selector to be alternately located in the optical path of the first color laser
On；
First wave length conversion equipment, for generating second under the excitation of the first color laser along first optic path
Color fluorescence；And
Second wave length conversion equipment, for generating third under the excitation of the first color laser along second optic path
Color fluorescence；
The second color fluorescence, the three fluorescence, the supplement light, first with optical path selection element transmission
It is emitted after color laser light combination.
Further, the light-source system further includes control device,
When the transmissive portions are located in the optical path of the first color laser, the control device controls the supplement light source
It does not shine；
When the optical path selection part is when in the optical path of the first color laser, the control device controls the supplement
Light source luminescent.
Further, the optical path selector includes by the fluctuating table of the first reflecting part and the second reflecting part surface composition
Face, first reflecting part are used for the first color laser aiming to first optical path, and second reflecting part is used for will
The first color laser aiming is to second optical path.
Further, the contoured surface is provided with the first section and the second section, is arranged in first section
The first reflecting part is stated, second reflecting part is provided in second section.
Further, first reflecting part is staggered or is disposed adjacent with second reflecting part.
Further, first reflecting part and second reflecting part are the plane or curved surface that reflection path is different.
Further, the light-source system is in neighbouring the first wave length conversion equipment and the second wave length conversion equipment
Position be respectively arranged with corresponding collecting lens group, each collecting lens group, which is respectively used to assemble light to corresponding wavelength, to be turned
Changing device, and fluorescence for corresponding wavelength conversion equipment to be emitted collimated after be emitted.
Further, the light-source system further includes dodging device, the second color fluorescence, the three fluorescence, institute
The dodging device is incident to after stating supplement light, the first color laser light combination transmitted with the optical path selection element.
Further, the light-source system further includes the first light splitting optical filter, for guiding the first wave length converting means
The three fluorescence of the second color fluorescence and second wave length conversion equipment outgoing of setting outgoing is emitted along same optical path；
The first light splitting optical filter is provided with first area and second area, wherein the first area is used for edge
To the first wave length conversion equipment, the second area is used for will be along institute for first color laser aiming of first optic path
The first color laser aiming of the second optic path is stated to the second wave length conversion equipment.
Further, the light-source system further includes the second light splitting optical filter, and the second light splitting optical filter is for guiding
The supplement light, the second color fluorescence of the first light splitting optical filter outgoing and three fluorescence and optical path selection member
First color laser of part transmission is emitted along same optical path.
Further, the second color fluorescence after collimation and three fluorescence expose to second light splitting optical filter surface,
The second light splitting optical filter includes coating film area and fringe region, and the of the supplement light and optical path selection element outgoing
Laser of the same colour converges near the coating film area, and the coating film area is for reflecting the supplement light and optical path selection member
First color laser of part transmission, the fringe region is for transmiting the second color fluorescence and the three fluorescence.
Further, the coating film area is used to reflect the light of preset wavelength range, the first color laser with it is described
The wave-length coverage of supplement light is located within the scope of the preset wavelength.
Further, the first color laser and the supplement light are the light of the first polarization state, and the coating film area is used for
The light for reflecting first polarization state, transmits the light of other polarization states.
Further, the light-source system further include third light splitting optical filter, it is described supplement light source issue supplement light with
The first color laser that the excitation light source issues is incident to the optical path selection member after the third is divided optical filter light combination
Part, the optical path selector in the optical path selection element are also used to transmit the supplement light.
Further, the transmissive portions are diffusion sheet.
Further, the optical path selector is dichroic piece in curved surface.
Further, the light-source system further includes third light splitting optical filter, and the first of optical path selection element transmission
The supplement light that color laser and the supplement light source issue is incident to described second point after the third is divided optical filter light combination
Light optical filter.
Further, dispersing element is additionally provided between the second light splitting optical filter and third light splitting optical filter.
A kind of projection device, including light-source system described in any one as above.
A kind of lighting apparatus, including light-source system described in any one as above.
First color laser of light-source system provided by the invention outgoing and supplement light without Wavelength converter reflection
With transmission, laser utilization is high, and the light efficiency for advantageously reducing the light-source system loses and improves luminous intensity, ensure that described
The light quality out of projection device and the lighting apparatus, has very important practical value.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly/mode technical solution, embodiment/mode will be described below in institute
Attached drawing to be used is needed to be briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention/side
Formula without creative efforts, can also obtain according to these attached drawings for those of ordinary skill in the art
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the light-source system that first embodiment of the invention provides.
Fig. 2 is the overlooking structure diagram of optical path selection element shown in FIG. 1.
Fig. 3 is the overlooking structure diagram of the first light splitting optical filter shown in FIG. 1.
Fig. 4 is the overlooking structure diagram of the second light splitting optical filter shown in FIG. 1.
Fig. 5 is the structural schematic diagram for the light-source system that second embodiment of the invention provides.
Fig. 6 is the overlooking structure diagram of optical path selection element shown in fig. 5.
Main element symbol description
Light-source system 100,200
Excitation light source 110
Supplement light source 120,220
Third is divided optical filter 125,225
Optical path selection element 130,230
Transmissive portions 132,232
Optical path selector 134,234
First section 135a
Second section 135b
Driving portion 136
First light splitting optical filter 140
First area 142
Second area 144
First wave length conversion equipment 150a
Second wave length conversion equipment 150b
Dispersing element 260
Second light splitting optical filter 170,270
Coating film area 172
Fringe region 174
Dodging device 180
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying example, the present invention will be described in detail.It should be noted that in the absence of conflict, embodiments herein and embodiment
In feature can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Fig. 1-Fig. 2 is please referred to, Fig. 1 is the structural schematic diagram for the light-source system 100 that first embodiment of the invention provides, figure
2 be the overlooking structure diagram of optical path selection element 130 shown in FIG. 1.The laser utilization of light-source system 100 is high, is conducive to
The light efficiency for reducing light-source system 100 loses and improves luminous intensity, can be applied in projection device and lighting apparatus, ensure that
The light quality out of the projection device and the lighting apparatus, has very important practical value.
Light-source system 100 includes: excitation light source 110, supplement light source 120, optical path selection element 130, first wave length conversion
Device 150a, second wave length conversion equipment 150b.Wherein, excitation light source 110 is for issuing the first color laser；Supplement light source 120
For issuing the supplement light different from the first color laser color, the supplement light is laser；Optical path selection element 130 is wrapped
It includes: transmissive portions 132, optical path selector 134 and driving portion 136.Wherein, transmissive portions 132 are for transmiting the first color laser；Light
Road selector 134 is used to the first color laser reflexing to the first optical path or the second optical path with timing；Driving portion 136 is used for band
Dynamic transmissive portions 132 are alternately located in the optical path of the first color laser with optical path selector 134.First wave length conversion equipment
150a, for generating the second color fluorescence under the excitation of the first color laser along first optic path.Second wave length conversion
Device 150b, for generating three fluorescence under the excitation of the first color laser along second optic path.Described second
Color fluorescence, the three fluorescence, the supplement light, with optical path selection element transmission the first color laser light combination after be emitted.
The the first color laser and supplement light that light-source system 100 is emitted swash without the reflection and transmission of Wavelength converter
Light utilization efficiency is high, and the light efficiency for advantageously reducing light-source system 100 loses and improve luminous intensity, ensure that the projection device and
The lighting apparatus goes out light quality, has very important practical value.
It is understood that light-source system 100 further includes dodging device 180, the second color fluorescence, the third color are glimmering
It is incident to dodging device 180 after the first color laser light combination that light, the supplement light and optical path selection element 130 transmit, process is even
It is emitted after the even light of electro-optical device 180.It is understood that dodging device 180 can be optical tunnel or fly's-eye lens.In a kind of implementation
It include the scattering diaphragm for being scattered to light in mode, in dodging device 180, to be carried out at eliminating coherence to emergent light
Reason, to weaken relevant speckle.
As shown in Figure 1, the laser that excitation light source 110 is different from the supplement sending of light source 120 color.Excitation light source 110 includes
For generating the illuminator of the first color laser.In one embodiment, excitation light source 110 further includes for first color
Laser carries out the light balancing device of even light.
Further, excitation light source 110 can be blue-light source, issue blue laser.It is understood that excitation light source
110 are not limited to blue-light source, and excitation light source 110 is also possible to purple light source, red light source or green light source etc..Present embodiment
In, the illuminator in excitation light source 110 is blue laser, for issuing blue laser as the first color laser.It is appreciated that
Illuminator in excitation light source 110 may include one, two lasers or laser array, and the quantity of its specific laser can
According to actual needs selection.
The light balancing device is used to after the first color laser is carried out even light be emitted.In the present embodiment, the light balancing device can
For optical tunnel or fly's-eye lens.It in one embodiment, include for the first color in the light balancing device in excitation light source 110
The scattering diaphragm that laser is scattered, to carry out eliminating coherence processing to the first color laser.
In present embodiment, supplement light source 120 includes the illuminator for generating red laser.It supplements in light source 120
Illuminator includes red laser, and supplement light source 120 is for issuing red laser as supplement light.In the present embodiment, may be used
To understand, the illuminator for supplementing in light source 120 may include one, two lasers or laser array, its specific laser
Quantity can according to actual needs select.It is understood that in one embodiment, supplement light source 120 is for issuing
Green laser is as supplement light, and correspondingly, the illuminator supplemented in light source 120 includes green laser.It is understood that mending
Filling light source 120 can also include the illuminator for issuing two kinds of color laser, for example wrap in the illuminator in supplement light source 120
Red laser and green laser are included, issues red laser and green laser as supplement light.
As shown in Figure 1, first wave length conversion equipment 150a and second wave length conversion equipment 150b turns for fixed wavelength
Changing device, it is therefore preferable to which fixed fluorescent plate is conducive to reduce occupancy sky of the Wavelength converter in light-source system 100
Between, be conducive to the volume Miniaturization Design of light-source system 100.First wave length conversion equipment 150a and second wave length conversion equipment
150b under the excitation of the first color laser for generating the fluorescence of corresponding color.In the present embodiment, first wave length turns
The surface changing device 150a is provided with red fluorescence powder, and to generate red fluorescence, the surface second wave length conversion equipment 150b is provided with
Green emitting phosphor, to generate green fluorescence.It is understood that first wave length conversion equipment 150a and second wave length conversion equipment
The wavelength conversion material of other colors can also be arranged in 150b.
Light-source system 100 is distinguished in the position of neighbouring first wave length conversion equipment 150a and second wave length conversion equipment 150b
It is provided with corresponding collecting lens group, each collecting lens group is respectively used to assemble light to corresponding Wavelength converter, with
And the fluorescence for corresponding wavelength conversion equipment to be emitted collimated after be emitted.
Light-source system 100 further includes control device (not shown), when transmissive portions 132 are located at the optical path of the first color laser
When upper, the control device control supplement light source 120 does not shine；When optical path selector 134 is located at the light of the first color laser
When road, the control device issues the supplement light of corresponding color according to fluorescence color, control supplement light source 120 is generated.This reality
It applies in mode, when first wave length conversion equipment 150a generates red fluorescence, the control device control supplement light source 120 is generated
Red supplement light.When second wave length conversion equipment 150b generates green fluorescence, the control device control supplement light source 120 is produced
Raw green supplement light.It is understood that the embodiment party of red supplement light and green supplement light can be issued in supplement light source 120
In formula, control device control supplement light source 120 issues supplement light corresponding with fluorescence color instantly, i.e., when generating red fluorescence
The control device control supplement light source 120 generates red supplement light, and when generating green fluorescence, the control device control is mended
It fills light source 120 and generates green supplement light.
Light-source system 100 further includes third light splitting optical filter 125, the supplement light and excitation light source that supplement light source 120 issues
110 the first color laser issued are incident to optical path selection element 130 after third is divided 125 light combination of optical filter.This embodiment party
In formula, it is the dichroic piece for saturating Lan Fanhong that third, which is divided optical filter 125,.Correspondingly, transmissive portions 132 are diffusion sheet, to subtract
The speckle phenomena of the weak first color laser, and extend its etendue.It is understood that in one embodiment,
Transmissive portions 132 are provided with anti-reflection film, are additionally provided with dispersing element between optical path selection element 130 and dodging device 180.
As shown in Fig. 2, the optical path selector 134 in optical path selection element 130 includes being reflected by the first reflecting part and second
The contoured surface of portion's surface composition, first reflecting part are used for the first color laser aiming to first optical path, institute
The second reflecting part is stated to be used for the first color laser aiming to second optical path.Wherein, first reflecting part with it is described
Second reflecting part surface curvature is different, and in one embodiment, the first reflecting part and the second reflecting part are recess portion and protrusion
Combination, relative to 132 surface of transmissive portions, is recessed for example, first reflecting part is recess portion to neighbouring 136 direction of driving portion
Extend；Second reflecting part is protrusion, relative to 132 surface of transmissive portions, is extended to far from 136 direction of driving portion protrusion.It can be with
Understand, first reflecting part can also be the combination of recess portion and plane, the combination of protrusion and plane, or different songs
The recess portion of rate is combined with recess portion, and the protrusion of different curvature is combined with protrusion, the combination of the plane and plane of different reflection directions.In
In a kind of embodiment, the second reflecting part is used for the first color laser aiming to the first optical path, and the first reflecting part will be for will be described
First color laser aiming to the second optical path.
In the present embodiment, the contoured surface is provided with the first section 135a and the second section 135b, the first section
It is provided with first reflecting part in 135a, second reflecting part is provided in the second section 135b.In a kind of embodiment
In, the first adjacent reflecting part and the first reflecting part and/or the first adjacent reflecting part and the second reflecting part and/or adjacent
Second reflecting part is connected with the second reflecting part.In one embodiment, the first adjacent reflecting part and the first reflecting part,
And/or first be spaced between reflecting part and the second reflecting part and/or the second reflecting part and the second reflecting part and be arranged.
In one embodiment, corresponding first reflecting part of contoured surface is staggered with the second reflecting part, first
In the embodiment that reflecting part combines for recess portion with protrusion with the second reflecting part, contoured surface is wave-shaped, further, described
First reflecting part is disposed adjacent at a predetermined interval with second reflecting part.
Optical path selector 134 is also used to transmit the supplement light, and in present embodiment, optical path selector 134 is in curved surface
Dichroic piece, the dichroic piece is for anti-blue thoroughly red or anti-blue thoroughly yellow.
Referring to Fig. 3, for the overlooking structure diagram of the first light splitting optical filter 140 shown in FIG. 1.Light-source system 100 is also
Including the first light splitting optical filter 140, it is set to optical path selection element 130, first wave length conversion equipment 150a and second wave length and turns
Between changing device 150b.The second color fluorescence that first light splitting optical filter 140 is used to that first wave length conversion equipment 150a to be guided to be emitted
It is emitted with the three fluorescence of second wave length conversion equipment 150b outgoing along same optical path.First light splitting optical filter 140 is towards the
The side of two Wavelength converter 150b is provided with dichroic film, and in present embodiment, the dichroic film is for anti-green red.
First light splitting optical filter 140 is provided with first area 142 and second area 144, wherein first area 142 is used for
By along the first color laser aiming of first optic path to first wave length conversion equipment 150a, second area 144 is used for will
The first color laser aiming along second optic path is to second wave length conversion equipment 150b.Further, first area 142
Light corresponding with first reflecting part, and being issued for receiving first reflecting part；Second area 144 and described second
Reflecting part is corresponding, and the light issued for receiving second reflecting part.It is understood that first area 142 and second
Region 144 can be disposed adjacent, or interval setting, and the spacing distance between first area 142 and second area 144 can basis
First optical path and the second optical path parameter determine, so guarantee the first reflecting part outgoing along first optical path
First color laser of transmission is guided through first area 142 to first wave length conversion equipment 150a, and guarantees second reflection
The first color laser along second optic path of portion's outgoing is guided through second area 144 to second wave length conversion equipment
150b。
Optical path selection element 130 is alternately emitted the first color along first optical path and second optic path with timing
Laser, so that the first light splitting optical filter 140 is alternately emitted the first color laser to first wave length conversion equipment 150a with timing
And second wave length conversion equipment 150b.In present embodiment, first area 142 is for reflecting the first color laser, the secondth area
Domain 144 is blue laser for transmiting the first color laser, the first color laser.First light splitting optical filter 140 is towards first wave
The side of long conversion equipment 150a, first area 142 can be set the dichroic film or reflectance coating for reflecting blue light, and second
Anti-reflection film has can be set in region 144.
Fig. 4 is further regarded to incorporated by reference to Fig. 1, for the overlooking structure diagram of the second light splitting optical filter 170 shown in FIG. 1.
Light-source system 100 further includes the second light splitting optical filter 170 being set between the first light splitting optical filter 140 and dodging device 180,
The the second color fluorescence and third color that second light splitting optical filter 170 is used to that the supplement light, the first light splitting optical filter 140 to be guided to be emitted
The first color laser that fluorescence and optical path selection element 130 transmit is emitted to dodging device 180 along same optical path.
The second color fluorescence and three fluorescence after collimation expose to 170 surface of the second light splitting optical filter, the second light splitting filter
Mating plate 170 includes coating film area 172 and fringe region 174, and the first color that the supplement light and optical path selection element 130 are emitted swashs
The concentrated lens 160 of light converge near coating film area 172, and coating film area 172 is selected for reflecting the supplement light and optical path
The first color laser that element 130 transmits, fringe region 174 is for transmiting the second color fluorescence and the three fluorescence.
Specifically, the plating of coating film area 172 is equipped with reflectance coating or filter coating or coating film area 172 is provided with reflector plate or filter
Mating plate, the plating of fringe region 174 are equipped with anti-reflection film.In one embodiment, the plating of coating film area 172 is equipped with for reflecting default wave
The wave-length coverage of the bandpass filters of the light of long range, the first color laser and the supplement light is located at the preset wavelength
In range.Light within the scope of the bandpass filters reflection preset wavelength, and reflect the light outside the preset wavelength range.One
In kind embodiment, the preset wavelength range are as follows: 445nm-455nm, 515nm-525nm and 633nm-643nm, above three
Wave band is the wave band where the first color laser and the supplement light, to reduce fluorescence in the loss of coating film area 172, is improved
The rate rate of fluorescence.
In one embodiment, the first color laser and supplement light are the light of the first polarization state, and coating film area 172 is for anti-
The light for penetrating first polarization state, transmits the light of other polarization states.Since fluorescence is non-polarized light, so that fluorescence is in plated film
The light efficiency of the loss of region 172 1/2 is conducive to the utilization rate for improving fluorescence.
Further, the first color laser that the supplement light and optical path selection element 130 are emitted is in Gaussian Profile
Laser, etendue is small, and after overconvergence, and minimum hot spot, 172 ruler of coating film area are formed in coating film area 172
It is very little to be matched with laser-formed spot size.It is big in the fluorescent optics propagation of lambertian distribution, expose to the second light splitting optical filter
The facula area on 170 surfaces is much larger than laser-formed hot spot, and most of fluorescence exposes in fringe region 174.Light-source system
100 can complete fluorescence and laser light combination by the principle of etendue light combination in the case where losing a small amount of fluorescence.
Pass through transmissive portions in the focal length and optical path selection element 130 of optimization convergent lens 160 during laser fluorescence light combination
132 scattering degree can make laser angle match with fluorescence angle, so that in angle after the fluorescence and laser light combination
Be in distribution it is continuous, ensure that the angle uniformity of light after light combination, avoid projected picture image quality or illuminating ray quality
It reduces.
In addition, further including induction element well known in the art in light-source system 100 in embodiment of the present invention, such as relay
Lens, reflecting mirror etc., do not enumerate herein.
Fig. 5-Fig. 6 is please referred to, for the structural schematic diagram for the light-source system 200 that second embodiment of the invention provides, Fig. 6 is
The overlooking structure diagram of optical path selection element 230 shown in fig. 5.The main distinction of light-source system 200 and light-source system 100 exists
In: supplement light is conducive to the utilization rate for improving laser without optical path selection element 230.Specifically, optical path selection element 230
The supplement light that the first color laser and supplement light source 220 of transmission issue is incident to the after third is divided 225 light combination of optical filter
Two light splitting optical filters 270.Correspondingly, the transmission area 232 of optical path selection element 230 is for transmiting the first color laser, optical path selection
Portion 234 is for reflecting the first color laser.It is additionally provided between second light splitting optical filter 270 and third light splitting optical filter 225
Dispersing element 260 to weaken the speckle phenomena of laser, and extends its etendue.
It should be noted that in the range of spirit or essential attributes of the invention, suitable for first embodiment
Each concrete scheme can also be accordingly suitable for second embodiment, for the sake of saving space and avoiding repetition, herein just not
It repeats again.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included in the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.This
Outside, it is clear that one word of " comprising " does not exclude other units or steps, and odd number is not excluded for plural number.That states in device claim is multiple
Device can also be implemented through software or hardware by the same device or system.The first, the second equal words are used to indicate name
Claim, and does not indicate any particular order.
Finally it should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although reference
Preferred embodiment describes the invention in detail, those skilled in the art should understand that, it can be to of the invention
Technical solution is modified or equivalent replacement, without departing from the spirit and scope of the technical solution of the present invention.
Claims (20)
1. a kind of light-source system characterized by comprising
Excitation light source, for issuing the first color laser；
Light source is supplemented, for issuing the supplement light different from the first color laser color, the supplement light is laser；
Optical path selection element, comprising:
Transmissive portions, for transmiting the first color laser；
Optical path selector, for the first color laser to be reflexed to the first optical path or the second optical path with timing；And
Driving portion, for driving the transmissive portions and the optical path selector to be alternately located in the optical path of the first color laser；
First wave length conversion equipment, it is glimmering for generating the second color under the excitation of the first color laser along first optic path
Light；And
Second wave length conversion equipment, it is glimmering for generating third color under the excitation of the first color laser along second optic path
Light；
The second color fluorescence, the three fluorescence, the supplement light and the first color of optical path selection element transmission swash
It is emitted after actinic light.
2. light-source system as described in claim 1, which is characterized in that the light-source system further includes control device,
When the transmissive portions are located in the optical path of the first color laser, the control device controls the supplement light source and does not send out
Light；
When the optical path selection part is when in the optical path of the first color laser, the control device controls the supplement light source
It shines.
3. light-source system as described in claim 1, which is characterized in that the optical path selector includes by the first reflecting part and
The contoured surface of two reflecting part surface compositions, first reflecting part are used for the first color laser aiming to first light
Road, second reflecting part are used for the first color laser aiming to second optical path.
4. light-source system as claimed in claim 3, which is characterized in that the contoured surface is provided with the first section and the secondth area
Section, it is provided with first reflecting part in first section, second reflecting part is provided in second section.
5. light-source system as claimed in claim 3, which is characterized in that first reflecting part interlocks with second reflecting part
It is arranged or is disposed adjacent.
6. light-source system as claimed in claim 3, which is characterized in that first reflecting part and second reflecting part are anti-
The different plane of rays diameter or curved surface.
7. light-source system as described in claim 1, which is characterized in that the light-source system is converted in the neighbouring first wave length
The position of device and the second wave length conversion equipment is respectively arranged with corresponding collecting lens group, each collecting lens group difference
For assembling light to corresponding Wavelength converter, and the fluorescence for corresponding wavelength conversion equipment to be emitted collimates
After be emitted.
8. light-source system as described in claim 1, which is characterized in that the light-source system further includes dodging device, and described
Two color fluorescence, the three fluorescence, the supplement light, with the optical path selection element transmission the first color laser light combination after enter
It is incident upon the dodging device.
9. the light-source system as described in claim 1-8 any one, which is characterized in that the light-source system further includes first point
Light optical filter, for guiding the second color fluorescence of the first wave length conversion equipment outgoing to go out with the second wave length conversion equipment
The three fluorescence penetrated is emitted along same optical path；
The first light splitting optical filter is provided with first area and second area, wherein the first area is used for will be along described
First color laser aiming of the first optic path is to the first wave length conversion equipment, and the second area is for will be along described the
First color laser aiming of two optic paths is to the second wave length conversion equipment.
10. light-source system as claimed in claim 9, which is characterized in that the light-source system further includes the second light splitting optical filter,
The second light splitting optical filter is used to guide the second color fluorescence and third of the supplement light, the first light splitting optical filter outgoing
Color fluorescence and the first color laser of optical path selection element transmission are emitted along same optical path.
11. light-source system as claimed in claim 10, which is characterized in that the second color fluorescence and three fluorescence after collimation shine
It is incident upon second light splitting optical filter surface, the second light splitting optical filter includes coating film area and fringe region, the supplement
Light and the first color laser of optical path selection element outgoing converge near the coating film area, and the coating film area is for anti-
The first color laser of the supplement light and optical path selection element transmission is penetrated, the fringe region is for transmiting second color
Fluorescence and the three fluorescence.
12. light-source system as claimed in claim 11, which is characterized in that the coating film area is for reflecting preset wavelength range
Light, the wave-length coverage of the first color laser and the supplement light is located within the scope of the preset wavelength.
13. light-source system as claimed in claim 11, which is characterized in that the first color laser is first with the supplement light
The light of polarization state, the coating film area are used to reflect the light of first polarization state, transmit the light of other polarization states.
14. light-source system as claimed in claim 10, which is characterized in that the light-source system further includes that third light splitting filters
Piece, the first color laser that the supplement light and the excitation light source that the supplement light source issues issue, is divided by the third and filters
The optical path selection element is incident to after mating plate light combination, the optical path selector in the optical path selection element is also used to transmit described
Supplement light.
15. light-source system as claimed in claim 14, which is characterized in that the transmissive portions are diffusion sheet.
16. light-source system as claimed in claim 14, which is characterized in that the optical path selector is dichroic in curved surface
Piece.
17. light-source system as claimed in claim 10, which is characterized in that the light-source system further includes that third light splitting filters
The supplement light that piece, the first color laser of the optical path selection element transmission and the supplement light source issue is divided by the third
The second light splitting optical filter is incident to after optical filter light combination.
18. light-source system as claimed in claim 17, which is characterized in that the second light splitting optical filter and the third are divided
Dispersing element is additionally provided between optical filter.
19. a kind of projection device, which is characterized in that including the light-source system as described in claim 1-18 any one.
20. a kind of lighting apparatus, which is characterized in that including the light-source system as described in claim 1-18 any one.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810444994.4A CN110471245B (en) | 2018-05-10 | 2018-05-10 | Light source system, projection apparatus, and illumination apparatus |
| EP19800781.7A EP3792690A4 (en) | 2018-05-10 | 2019-01-05 | Light source system, projection device and illumination device |
| PCT/CN2019/070523 WO2019214273A1 (en) | 2018-05-10 | 2019-01-05 | Light source system, projection device and illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810444994.4A CN110471245B (en) | 2018-05-10 | 2018-05-10 | Light source system, projection apparatus, and illumination apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110471245A true CN110471245A (en) | 2019-11-19 |
| CN110471245B CN110471245B (en) | 2021-10-22 |
Family
ID=68466884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810444994.4A Active CN110471245B (en) | 2018-05-10 | 2018-05-10 | Light source system, projection apparatus, and illumination apparatus |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3792690A4 (en) |
| CN (1) | CN110471245B (en) |
| WO (1) | WO2019214273A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110471245B (en) | 2021-10-22 |
| EP3792690A4 (en) | 2022-03-09 |
| EP3792690A1 (en) | 2021-03-17 |
| WO2019214273A1 (en) | 2019-11-14 |
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